Condenser for refrigerating systems



"Feb. 17, 1925. 1,526,961

E. A. BURROWS CONDENSER FOR REFRIGERATING SYSTEMS Original Filed' April 1, 1921 .Ziivenior J4? Q15 60 7 0206 W V W &

ROWS, acitizen of the United States, of Ghi- Patented F eb. 17, 1925.

UNITED STATES PATENT OFFICE.

EASTMAN A. BURROWS, OF CHICAGO, IIJJNOIS.

CONDENSER FOR REFRIGERATING SYSTEMS.

Application filed April 1, 1921, Serial No. 457,645. Renewed August 4, 1924.

To all whom it may concern: 7

Be it known that I, EASTMAN A. BUR- pensive construction, comparatively speaking, but is also eflicient in cooling the compressed refrigerating fluid; and to provide certain details and features of construction and combinations tending to increase the general efliciency and the desirability of a refrigerating system of this particular character.

' To these and other useful ends the invention consists in matters hereinafter set forth,'

claimed and shown in the accompanying drawings, in which: Figure 1 is an enlarged vertical longitudinal section of the condenser, with the mid dle portion thereof broken away for the convenience of illustration.

Figure 2 is a transverse section on line 2-2 in Figure 1, looking in the direction indicated by the arrows.

Figure 3 is a vertical section on line 8-3 in F1 e 1 looking in the direction indicated y the arrows. I

As thus illustrated the condenser comprises an outer cylindric shell or barrel 69 having flanges 70 at the opposite ends thereof, and cast metal heads 71 and 72 are removably secured by, bolts 73 to said flanges. Said heads are provided with inwardly projecting hubs or central portions which have passages 74 .therein, and the head 71 has acentral opening 75 to which the inlet water pipe 76 is connected. The condenser comprises a plurality of inner cylinders, the center cyllnder 77 being fitted tightly upon the said hubs of the two heads, and 'the outer cylinder 78, whichis intermediate in its relation to the cylinder 7 7 and the outer c linder or shell 69, is supported on the cylin er 77 by means.

of rings 79 welded thereto, it being observed that these two cylinders 77 and 78 are somewhat shorter than the outer cylinder 69 (which latter forms the'shell or barrel of the condenser) whereby space 80 between the shell 69 and the cylinder 78 communicates through the passages 74 with the interior of the smallest or center cylinder 77 inorder to insure proper circulation for the water. The pipe 8 through which the refrigerating fluid enters the condenser extends into the top of the space 81 between the cylinders 77 and 78, and is preferably provided with openings 82 in the sides thereof to discharge the refrigerating fluid downwardly upon the sides of the cylinder 77 which contains the cold water. The pipe 9 has its inner end bent downward, preferably, as shown in Figures 13 and 14, so that all liquid which accumulates in the cylinder 78 will be drawn off through this pipe 9, after some circulation of the fluid. The water is discharged by the pipe 76 into the cylinder 77, at a comparatively high velocity, so that it rushes through and enters the passages 74 in the head 72 at the extreme farther end of the condenser, and then passes back in the space to the passages 74 in the head 71, thus producing a circulation or a swirling motion of the water from one end to the other of the condenser, and back again, before being discharged through the outlet water pipe 83, thus ensuring a greater absorption of the heat by the water from the refrigerating fluid than would be the case, of course, if the water were simply allowed to circulate slowly or sluggishly through the condenser. The Water enters at high velocity from the pipe 76, and imparts this velocity, substantially, to the much greater body of water in the cylinder 77, inasmuch as the water can, as explained, after passing out of the cylinder 77, circulate and come back into this cylinrefrigerating ter discharged from the pipe 83 is conducted away in the usual, or in any suitable or desirable manner. The condenser is also a liquid receiver, as liquefied refrigerant can accumulate in space 81 therein and be taken up by the down-turned inner end portion of the pipe 9, as' previously stated, when a valve in the said pipe is opened. The supply of water to the condenser is controlled y a valve of any suitable character in the water inlet pipe 76. 1

In the condenser, as explained, the only castings employed are the end heads 71 and 72 which can be applied to an outer shell of any desired length, and which afford passages through which a rapid circulation of the cooling water is induced by the force with which the water is projected into the condenser.

What I claim as my invention is:

1. A condenser for refrigerating systems, comprising three concentric cylinders, heads engaging the center cylinder and the outer cylinder, means on the center cylinder to support the intermediate cylinder, means to conduct the refrigerating fluid through one of said heads to the space between the center and intermediate cylinders, means to dis-.

charge the fluid through the same head from said space, passages in said heads to connect the interior .of the center cylinder with the space between the intermediate and outer cylinders, means to force water into one end of said center cylinder, and means to discharge the water from the outer cylinder.

2. A structure as specified in claim 1, said water supply m,eans being connected to the same head through which the refrigerating fluid is also conducted to and from the condenser.

3. A structure as specified in claim 1, said heads having portions which extend into the opposite ends of the center cylinder and which have said passages formed therein, and said outer cylinder having flanges to which said heads are rem-ovably bolted, whereby the two inside cylinders are cen tered in the outer cylinder.

4.. A condenser for refrigerating systems, comprising an outer shell, a plurality of concentric cylinders inside the shell, heads for the shell, means on the heads to support said cylinders, means to conduct the refrig erating fluid to and from the space between the cylinders, and means to circulate water through the shell and the inner cylinder.

5. A structure as specified in claim 4, said conducting means for the refrigerating fluid comprising an inlet pipe extending through one head and into the top of the space be tween the cylinders, in combination with an outletpipe extending through the same head and into the bottom of said space, with the inner end of said lower pipe bent down to draw up any liquid that may collect in the condenser. I

' 6. A structure as specified in claim 4, said cylinders being secured together at their ends, and said heads being removably secured to the ends of the shell, so that re moval of the heads leaves the cylinders removable as a unit from the shell.

Signed EASTMAN A. BURROWS. 

